Batteriser

Batteriser is a $2.50 gadget that extends disposable battery life by up to 800 percentIt’s essentially a voltage booster that sucks every last drop of useable energy from ostensibly spent batteries. So, instead of using just 20 percent of all the power hidden inside of your Duracells and Energizers, Batteriser makes effective use of the remaining 80 percent.Voltage boosters are nothing new, but Batteriser scales down the technology to the point where it can fit inside a stainless steel sleeve less than 0.1 mm thick. The sleeves are thin enough to fit inside almost every battery compartment imaginablehttp://www.macworld.com/article/2928997/batteriser-is-a-250-gadget-that-extends-disposable-battery-l...